Lubricator.



Patented Jan. 12, 1909. 2 SHEETS-SHEBT l.

L. T. DERY.

LUBRICATOR. APPLICATION rum J'AN. a, 1908.

L. T. DERY. LUBBIGATOR.

I APPLIcATIoN rum: uns, 190e.

Patented Jan. 12. 1909.

2 SHEETS-SHEET 2.

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nr neigen LOUIE T. DERY, OF MONTPELIER, NORTH DAKOTA.

LUBRICATOR.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed January 8, 1908. Serial No. 409,387.

To all whom it may concern:

Be it known that 1, LoUIn T. Daar, citizen of the United States, residing at Montpelier, in the county of Stutsman and State of North Dakota, have invented certain new and useful improvements in Lubricators, of which the following is a specification.

The present invention relates to an improved lubricating attachment for steam engines or like machines, the said attachment being peculiarly designed so as to operate in an automatic manner to supply the moving parts of the engine with oil or lubricant in the required quantity.

The object of the invention is to provide a lubricating attachment of this character which is simple in its construction and operation and can vbe readily applied to the engine or machine.

Broadly speaking the device comprises a pump for forcing the oil or lubricant through a feed pipe, and novel means whereby the pump is automaticallyT actuated by one of the moving parts of the engine.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a longitudinal sectional view through the improved lubricating attachment, the plunger of the pump being shown at the limit of its outward movement after having sucked lubricant into the pump barrel. Fig. 2 is a similar view showing the pump plunger at the limit of its inward movement after having forced the lubricant within the pump barrel out through the feed pipe.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

Referring to the drawings the numeral 1 designates an oil reservoir or tank which is normally closed by means of a hinged lid 2 and is provided upon its exterior with the oppositely extending perforated ears 3 by means of which it can be readily secured to the engine or like machine. ln the present instance a ledge 4 is formed upon the interior of the reservoir and supports a screen 5 which serves to strain the oil and remove all grit or solid particles therefrom which would have an injurious effect if fed to the moving parts of the machine. The oil or lubricant is forced through a feed pipe 6 by means of a pump, the barrel 7 of which is shown in the present instance as extending along the bottom of the reservoir, one end of the barrel being deflected upwardly along the side of the reservoir and the said upwardly deflected end 8 of the barrel communicating with an outwardly opening check valve 9 located within the tank and controlling the passage of the lubricant from the tank to the pump barrel. A similar check valve 10 is located in the length of the feed pipe 6 adjacent the barrel 7 and the iiow of oil through the feed pipe is controlled by a valve 11 which may be of any approved type. Attention may also be here directed to the fact that a drain plug 12 is located at the junction of the body portion of the pump barrel 7 and the upwardly extending end 8 thereof and constitutes a means for withdrawing the lubricant from the pump barrel should such a result become at any time desirable.

Operating within the pump barrel 7 is a plunger 13 which extends through a packing cap 14 and terminates in a flattened head 15, the said head being provided with a pair of spaced upwardly extending lugs 16 and a notch 17 being located adjacent the innermost lug 16.

Projecting from the upper portion of the reservoir 1 is a bracket 18 the outer end of which is bifurcated while the inner end or base is provided with laterally extending flanges which are bolted or otherwise rigidly secured to the reservoir. Pivotally mounted within the bifurcated end of the bracket 18 is an operating lever 19 and a trip lever 20, both of the said levers being pendent from the bracket and having a pin and slot connection therewith so as to have both a swinging and an up and down movement. The trip lever 20 is pivotaily connected to the head 15 of the plunger and extends downwardly below the same, the end portion of the said lever engaging a spring 21 which normally operates to force the plunger inwardly within the pump barrel. The opposite end of this spring 21 is engaged by a screw 22 carried by an arm 23 projecting from the reservoir, the said screw enabling the tension in the spring to be adjusted as desired.

The operating lever 19 is provided with a pin or projection 24 designed t0 enter the notch 17 of the plunger head 15 when the lever is swung inwardly toward the reservoir. A series of openings 25 is formed in the operating lever 19, any selected one of which is designed to be engaged by a flexible link member such as the chain 26, the said ilexible link having an operative connection with some moving part oi' the engine such as the piston rod or the valve rod. ln the present instance a bracket 27 is shown which engages the chain 26 and can be detachably clamped to the desired part of' the engine.

A lug 28 projects from the reservoir 1 under the bracket 18 and has the locking lever 29 pivoted thereon, the extremity of the said locking lever being formed with a notch 30 designed to engage a pin or projection 31 upon the operating lever 19 to hold the latter in an inoperative position. It will also be observed that this locking lever is formed at an intermediate point with a cam portion 32 designed to be engaged by a pin or projection 33 upon the trip lever 2O for the purpose of lifting the locking lever and releasing the operating lever when the plunger 13 has been forced inwardly to the limit of its inward movement.

In the operation of the lubricating device the plunger 13 is normally forced within the pump barrel byv means of the spring 21 and the operating lever 19 is normally swung inwardly by means of a spring 34, the projection 24 upon the 'operating lever serving to engage the notch 17 when in this position. Upon the outward' movement of the moving part of the engine to which the bracket 27 is attached the chain or flexible link member 26 operates to swing the operating lever 19 outwardly, and when the said moving part of the engine has reached the limit of its movement the projection 24 of the operating lever is lifted out of the notch 17 of the plunger head 15 and the projection 31 caused to enter the notch 30 of the locking lever. The operating lever is thereby held in an inoperative position against the action of the spring 34 and the plunger 13 placed under the action of the spring 21. The said plunger is thereby gradually forced inwardly so as to cause the oil or lubricant which was sucked into the pump barrel through the check valve 9 upon the ouward stroke of the plunger to flow through the feed pipe 6 which delivers it to the moving parts of' the engine as required, the valve 11 serving to control the velocity of the flow. As soon as the plunger 13 reaches the limit of its inward movement the projection 33 upon the trip lever 2O engages the cam portion 32 of the locking lever and swings the same upwardly so as to release the notch 30 from engagement with the projection 31. The spring 34 then swings the operating lever 19 inwardly until the projection 24 thereon enters the notch 17 of the plunger head, such movement being possible owing to the pin and slot connection at the upper end of the operating lever. The locking lever and plunger are thereby locked together so that upon the next outward stroke of the engine member to which the bracket 27 is applied the chain 26 will again swing the operating lever outwardly as previously described, a new supply of oil or lubricant being drawn into the pump barrel and 'the spring 21 again placed under tension and permitted to act upon the plunger to force the new supply of oil through the feed pipe. in this manner it will be readily apparent that a constant flow of oil will be provided and that lubricant will be supplied to the moving parts of the engine or machine in the required quantity. lt may also be mentioned that by attaching the chain 26 to a suitable one of the openings 2K adjustment can be made for any amplitude of stroke of the reciprocating member to which the bracket 27 may be attached.

`iaving thus described the invention, what is claimed as new is:

1. in a lubricator, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, means for' discharging lubricant from the pump, means for filling the pump with lubricant, and a trip mechanism for holding the said iilling means in an inoperative position while the pump is discharging lubricant.

2. in a lubricator, the combination of a reservoir, a feed pipe leading from the reservoir, a pump l'or forcing lubricant through the feed pipe, means for moving the pump plunger inwardly, means for automatically moving the pump plunger outwardly, a trip for holding the means for moving the plunger outwardly in an inoperative position, and means for releasing the trip when the plunger has reached the limit ot its inward movement.

3. ln a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, means for moving the pump plunger inwardly, an operating lever for automatically moving the pump plunger outwardly, means for holding the operating lever in an inoperative position, and means for releasing the operating lever when the pump plunger has reached the limit of its inward movement.

4. ln a lubricating attachment for engines, the combination of a reservoir, a ieed pipe leading from the reservoir, a pump for Jforcing lubricant through the 'feed pipe, means for moving the pump plunger inwardly, an operating` lever for automatically movin@1 the pump plunger outwardly, the operatinglever being t isengaged from the pump plunger when the latter reaches the limit of its outward move ment, and means for causing the operating lever to again engage the pump plunger when the latter reaches the limit of its inward movement.

5. ln a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, means for moving the pump plunger inwardly, an operating lever for moving the pump plunger outwardly, the said operating lever being automatically disengaged from the pump plunger when the latter reaches the limit of its outward movement, a locking lever for holding the operating lever in an inoperative position, and means for moving the locking lever to release the operating lever when the pump plunger reaches the limit of its inward movement.

6. In a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, yielding means tending to move the pump plunger inwardly, an operating lever for moving the pump plunger outwardly, the said operating lever being automatically disengaged from the pump plunger when the latter' reaches the limit of its outward movement, a locking lever for holding the operating lever in an inoperative position, and a trip lever connected to the pump plunger and serving to move the locking lever to release the operating lever when the pump plunger reaches the limit of its inward movement.

7. ln a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, pump for forcing lubricant through the feed pipe, yielding means for moving the pump plunger inwardly, an operating lever for moving the pump plunger outwardly, the said operating lever being automatically disengaged from the pump plunger when the latter reaches the limit of its outward movement, a locking 1 lever -for holding the operating lever in an inoperative position after the pump plunger has been released, the said locking lever being formed with a cam, and a trip lever connected to the pump plunger and cooperating with the before mentioned cam to release the operating lever when the pump plunger reaches the limit of its inward movement.

S. ln a lubricating attachment for` engines, the combination of a reservoir, feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, the pump plunger being provided with a cam having a notch formed therein, means for moving the pump plunger inwardly, an operating lever provided with a projection adapted to be received Within the notch of the plunger head and serving to move the plunger outwardly, the projection being moved out of the notch when the plunger reaches the limit of its outward movement, and means for holding the operating lever out of engagement with the plunger head until the plunger reaches the limit of its inward movement.

Q. ln a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, the pump plunger being provided with a head having a notch formed therein, an operating lever provided with a projection designed to be received within the notch and serving to move the pump plunger outwardly, the projection being lifted out of the notch when the plunger reaches the limit of its outward movement; means for moving the plunger inwardly, a loclring lever for holding the operating lever in an inoperative position, and a trip for releasing the loclinglever when the pump plunger reaches the limit of its inward movement.

l0. In a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, means for moving the pump plunger inwardly, an operating lever for moving the pump plunger outwardly, a fiexible link connecting the operating lever to a moving part of the engine, and means for holding the operating lever in an inoperative position until the pump plunger has reached the limit of its inward movement.

1l. in a lubricating attachment for engines, the combination of a reservoir, a feed pipe leading from the reservoir, a pump for forcing lubricant through the feed pipe, means for moving the pump plunger inwardly, an operating lever for moving the pump plunger outwardly, the said operating lever being automatically disengaged from the pump plunger when the latter reaches the limit of its outward movement, a flexible link connecting the operatmg lever to a moving part of the engine, means for holding the operating lever in an inoperative position, and means for automatically releasing the operating lever when the pump plunger reaches the limit of its inward movement.

ln testimony whereof l affix my signature in presence of two witnesses.

LOUIE T. DERY. [L. s l

Witnesses:

P. ACKERMAN, I. YTRESIDE. 

